Tank-heatek



W. E. SCHAEFFER.

TANK HEATER JOINT.

APPLICATION FILED SEPT. 15. 1916.

PatentedJun 24, 1919.

UNITED sTATEs 1- I WILLIAM E. SCHAEFFER, 0F DULUTH, MINNESOTA.

TANK-HEATER JOINT.

Specification of Letters Patent. Patented June 24, 1919- Application filed September 15, 1916. Serial No. 1520,33 1.

To all whom it may concern:

Be it known that I, WILLIAM E. SoHAnrran, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certainnew and useful Improvements in Tank- Heater Joints, of which the following is a specification.

This invention relates to a portable stock tank heater formed of sheet metal and cast or malleable iron fittings, removable from the sheet metal body, so that said fittings can be used several times with new bodies, the cast or malleable iron portions outlasting sheet metal.

A special object of the invention is to arrange the fuel door and smoke pipe at the same end, thereby permitting practically full use of the tank; to permit firing when submerged, and to so locate the grate that perfect draft is obtained even when the fuel door is open, avoiding back draft.

With these objects in view the invention consists of the following novel features of construction, hereinafter described, pointed out in the claim and shown in the accompanying drawings, in which Figure 1 is a vertical, longitudinal section. Fig. 2 is a detail sectional view of a body joint.

i In the drawings 1 represents a horizontal sheet body portion having an end or bulkhead 2, and having exterior oblique flanges 3 at the opposite end. An inclined body portion also of sheet metal is shown at 4: and is carried by and supported from the body portion 1. It is provided with flanges 5 adapted to lie parallel to the'flanges 3.

A metal ring 6 unites the body portions said ring having a centrally arranged and deep exterior flange 7, the ring and flange being anchor-shape in cross section.

The ring is placed within the body portions overlapping them, and the flange 7 projecting outwardly through the joint and between the flanges 3 and 5.

The ioint is further completed and sealed by metal rings 8 placed on opposite sides of the flange 7 and on the outer faces of the flanges 3 and 5, respectively, the inner faces of said. rings being cut away, or the rings re/ duced in thickness, to receive said flanges. A slight space is left between each ring and the flange 7 for the reception of asphalt, or cement, 10. Bolts 15 are used to draw the rings 8 and the flange 7 together.

A partition 16 runs the length of the body 4: and joins a partition 17 placed horizontally in the body portion 1; These partitions are laced near the upper sides of the body portions, being flanged as shown at 18.

A smoke pipe 22 communicates with the space above the partition 16, being arranged at the upper end of the heater.

A removable cast iron grate 25 having side flanges 26 is suspended in the lower portion of the body A by means of a bar 27, and may be readily lifted out of place by said bar through the opening 20 when the device is submerged for either refiring or cleaning.

This grate rests at right angles to the longitudinal aXis of the body portion A and 1 projects obliquely across the joint and into the body portion 1. The space below the partition 16 forms 'a combustion chamber, the space above forming a smoke flue. The products of combustion pass through and around the grate and along the body portion 1 below the partition 17 and thence around the inner end of said partition and above the same back to the pipe 22.

This utilizes practically all of the heat units, and to accelerate the draft the grate is arranged much. closer to the inner end of the partition 16 than to the door 23.

This arrangement is secured both by making the body portion 4c of greater length than the portion 1 and also by runninr the partition 16 only a little more than half way the length of the portion 1. 7

By means of this construction I have a a heater which will not leak at the joints, which when the body portion wears out can be repaired by putting in new sheet metal bodies using the other parts, which can be fired and cleaned while submerged and in which the entire length of the tank excet a short space at one end can be used while the heater is in place.

What I claim is In a device of the kind described, body portions having parallel exterior flanges, retherefrom, said rings being cut away on spectively, a ring, flanged and anchor shape I their inner faces to receive the body flanges, in cross-section, said ring fitting ithin and and a cement or equivalent filling placed be- 10 overlapping said 'seetions, the ring flange tween said rin'gsand said ring flange;

5 projecting outwardly between said body In testimony whereof I affix my signature.

flanges, rings arranged respectively on ops" posite sides of the ring flange and spaced WILLIAM E. SCI-IAEFFER.

Copies of this patent may be obtained for five cents-eaeh, by addressing the Commissioner of Iatents, v

Washington, I); 0. 

